quoit / k(w)oit/ • n. 1. a ring of iron, rope, or rubber thrown in a game to encircle or land as near as possible to an upright peg. ∎ (quoits) [treated as sing.] a game consisting of aiming and throwing such rings. 2. the flat covering stone of a dolmen. ∎ the dolmen itself.• v. [tr.] archaic throw or propel like a quoit.